Working on Design for Grizzly Vibrator. Input appreciated!

[CDN Farm Boy]

I've seen that link before and probably well worth the $3500 if you use it regularly. Easy enough to replicate for personal low-volume use though.

One thing that it does show is that you don't necessarily need a motorized screen to be effective and that flipping the spring-loaded screen with the bucket can work just fine.

Is the primary goal of the separator to get the rocks or the fines?

 

[kg7il]

Is the primary goal of the separator to get the rocks or the fines?

My primary goal is prepping a large area for a garden. Get the Rocks OUT! Keep the soil / fines in.

Where I live we have large areas of Glacial Till or Moraine with some excellent Soil in the low spots.
A rototiller is near useless as is. A bottom plow or disc may be the only way to turn the soil. I don't want to remove rocks by hand.

My plan.
Clear a spot with the tractor's loader
Drag the frame/grizzly in place and move as much material as possible.
I am thinking about a rock sled to remove the rubble pile (leave sled in place and drag off when full).
Then move the frame for another stab and the next area.

 

[Tags]

I've seen that link before and probably well worth the $3500 if you use it regularly. Easy enough to replicate for personal low-volume use though.

One thing that it does show is that you don't necessarily need a motorized screen to be effective and that flipping the spring-loaded screen with the bucket can work just fine.

Is the primary goal of the separator to get the rocks or the fines?

My friend that bought it will use it on the jobs he does, so its easier for him to justify the cost. You cant beat getting the steel for nothing, I'd build one myself if that was the case. The unit only weighs 1000lbs so its easy for him to pick it up and move it around the jobsite or to load it onto a truck or trailer for transport.

 

[Rustyiron]

I am thinking about a rock sled to remove the rubble pile (leave sled in place and drag off when full).
Then move the frame for another stab and the next area.

Even with my buddy's powered screen, the reject (rubble) side needs to back over the screen again, actually several times, to save as much of that precious top soil as you can.

 

[kg7il]

Even with my buddy's powered screen, the reject (rubble) side needs to back over the screen again, actually several times, to save as much of that precious top soil as you can.

I'm guessing that is a problem inherent in the stationary designs, that is, Items must overcome gravity/friction and try to slide a steep surface.
My guess goes further that vibration will loosen the materials from the bigger rocks and the reduction in friction due to shaking causes larger stones to slide without an increased angle.

I may well try a spring mounted, adjustable angle that is nudged/shaken with the loader bucket.
This will give me time to try some of the design, before I commit to the shaker design.

 

[adirondackmtnman]

Go to your local quarry/sand & gravel operation and ask for a few pieces of used screen...they'll likely give it to you, I know ours would. Usually it's worn beyond their limits for properly graded material, or has a hole in it, but would still work fine for your application. Expanded metal will stretch as soon as you start putting product across it and adding vibration/oscillation, and will tear soon after. The commercial screening panels are woven, hardened steel.

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[kg7il]

Go to your local quarry/sand & gravel operation and ask for a few pieces of used screen

Great Idea. I even have an operation not far from me. I've even bought some of their product before.

 

[Shield Arc]

Years ago I built a grizzly for Lone Star sand and gravel, in their yard on West Marginal Way in Seattle. I think they changed their name to Glacier now. They used 966 or 988 Cat loaders to load the grizzly to separate rock. Seems as I used 1-inch by 8-inch flatbar for the grate. But the bucket on a 988 can drop quite a load of rock on something. :laughing:

 

[Shield Arc]

roll of self-shielded Wire Feed 035

You may want to re think this!

 

[adirondackmtnman]

You may want to re think this!

I agree with Shield Arc there...wire would be astronomically expensive...not sure how prices are around there, but here self shielded wire runs about $10/lb, and you lose some of that weight to the flux...whereas the solid wire is $2-3/lb. Makes it well worth the investment in a gas cylinder...you'll burn through a lot of wire on a project like this...

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